Quantitative Ecologist trained in statistics and ecosystem modeling, now a dynamic consultant and instructor for computational methods and collaborative workflows across disciplinary boundaries.
|Programming||Math & Stats|
|Python, R, C, SQL, CUDA, git, Mathematica,||ordinary, partial, and stochastic DEs; hierarchical|
|MATLAB, Bash, Jekyll, CSS, LaTeX, Docker||Bayes; generalized linear mixed models; random forests;|
|Ph. D. in Ecology, Evolution, and Marine Biology||2006 – 2012|
|University of California at Santa Barbara (UCSB)|
Dissertation on stochastic models of biodiversity maintenance advised by Prof. Roger Nisbet. Research funding from UC Reserve System, UCSB Graduate Division, and American Phycological Society. Built models to run on a 110 MPI node cluster in the Center for Scientific Computing at UCSB. Twice co-lectured the “Introduction to Ecology” course. Honors: NSF Graduate Research Fellowship, Regents Special Fellow, Worster Award for Student Mentors.
|B.A. with Honors in Biology||1999 – 2003|
Prof. Jennifer Hughes-Martiny advised on honors project with E. coli microcosom experiments and modeling. Honors: Caleel Prize for Academic Excellence.
|Senior Data Scientist||2018 – now|
|Data Scientist||2016 – 2018|
|National Socio-Environmental Synthesis Center (SESYNC)|
Developed curricula for and lead intensive short courses to train researchers on reproducible managment, synthesis, analysis, and visualization of unstructured, tabular, and geospatial data. Courses taught primarily at SESYNC but also at local universities and one international scientific conference. Consulting for inter-disciplinary teams of scientists and postdocs funded by SESYNC on above mentioned topics, as well as experimental design and process models for socio-environmental systems.
|Postdoctoral Fellow in Biology||2014 – 2016|
Basic research on animal disease propagation through livestock tracing and network modeling. Developed geodatabase of cattle marketing records programmatically scraped from heterogeneous online sources. Developed Bayesian predictive models of trade networks for epidemic inference. Managed and taught Python to five undergraduate and masters student research assistants.
|Postdoctoral Scholar in Biology||2012 – 2014|
|Woods Hole Oceanographic Institution|
Competitive 18-month scholarship awarded for research on phytoplankton population dynamics. Used machine learning to classify marine phytoplankton from in-situ microscopic imagery, with a novel probabilistic interpretation of random forests. Utilized GPU for parallel computations. Submitted NSF proposal to couple automatically classified cell images to phytoplankton community model and accommodate classification errors using particle filtering.
|Research Assistant||2005 – 2006|
|Heinz Center for Science, Economics & Environment|
Data visualizations for sections on non-native species within the “State of the Nation’s Ecosystems” report. Authored internal report on data gaps for air-quality indicators.
|Biological Field Technician (0404)||2004 – 2005|
|US Forest Service|
Field work in remote regions of the Sierra Nevada, surveying threatened amphibian species. Data entry in MS Access database and population status maps produced with ArcGIS. Required to carry 50lbs of equipment at altitudes of 10-12K feet over 25 miles from nearest road access.
Peer Reviewed Publications
Avolio, M. L., I. T. Carroll, S. Collins, G. Houseman, F. Isbell, S. Koerner, K. La Pierre, M. Smith, K. Wilcox, and L. Hallett. Submitted June 2018. A comprehensive approach to analyzing community dynamics using rank abundance curves.
Carroll, I. T. and R. M. Nisbet. 2015. Departures from neutrality induced by niche and relative fitness differences. Theoretical Ecology 8(4):449-465.
Narwani, A., M. A. Alexandrou, T. Oakley, I. T. Carroll, and B. J. Cardinale. 2013. Experimental evidence that evolutionary relatedness does not affect the ecological mechanisms of coexistence in freshwater green algae. Ecology Letters 16(11):1373-81.
Carroll, I. T., B. J. Cardinale, and R. M. Nisbet. 2011. Niche and fitness differences relate the maintenance of diversity to ecosystem function. Ecology 92(5):1157-1165.
Cardinale B. J., D. S. Srivastava, J. E. Duffy, J. P. Wright, A. L. Downing, M. Sankaran, C. Jousea, M. W. Cadotte, I. T. Carroll, J. J. Weis, A. Hector, and M. Loreau. 2009. Effects of biodiversity on the functioning of ecosystems: A summary of 164 experimental manipulations of species richness. Ecology (data paper), 90(3): 854.
Doak D. F., J. A. Estes, B. S. Halpern, U. Jacob, D. R. Lindberg, J. Lovvorn, D. H. Monson, M. T. Tinker, T. M. Williams, J. T. Wootton, I. T. Carroll, M. Emmerson, F. Micheli, and M. Novak. 2008. Understanding and predicting ecological dynamics: Are major surprises inevitable? Ecology 89(4): 952-961.
Cardinale, B. J., J. P. Wright, M. W. Cadotte, I. T. Carroll, A. Hector, D. S. Srivastava, M. Loreau, and J. J. Weis. 2007. Impacts of plant diversity on biomass production increase through time due to species complementarity. PNAS 104(46): 18123-18128.
Chikarmane H. M., A. M. Kuzirian, I. T. Carroll, and R. Dengler. 2001. Development of genetically tagged bay scallops for evaluation of seeding programs. Biological Bulletin 201(2):285-6.
Hallett, L., M. Avolio, I. T. Carroll, S. K. Jones, A. A. MacDonald, D. F. B. Flynn, P. Slaughter, J. Ripplinger, S. L. Collins, C. Gries, M. B. Jones. 2018. codyn: Community Dynamics Metrics. CRAN.
Marchand, P., M. Smorul, and I. T. Carroll. 2017. rslurm: Submit R Calculations to a Slurm Cluster. CRAN.
Carroll, I. T., and S. Bansal. 2014. Cattle auction markets in the USA: a de-duplicated list compiled from trade association and federal agency directories. Harvard Dataverse.
Carroll, I. T., M. G. Neubert, and H. M. Sosik. 2014. Mistakes were made: sampling models for automated classification of phytoplankton. ESA Annual Meeting. Sacramento, CA.
Carroll, I. T. 2012. Niche theory and the persistence of populations: applications to competitive communities and an infectious disease. Doctoral dissertation, UC Santa Barbara. ProQuest/UMI AAT 3545029.
Carroll, I. T., C. J. Briggs, and R. M. Nisbet. 2012. Signature of initial states in absorbing Markov chains: theory and an application to Batrachochytrium dendrobatidis infection. ESA Annual Meeting. Portland, OR.
Carroll, I. T. and R. M. Nisbet. 2011. From birth-death process to observed macrostates in neutral and non-neutral ecological communities. Gordon Research Conference: Stochastic Physics in Biology. Ventura, CA.
Carroll, I. T. and R. M. Nisbet. 2010. Opposing effects of density-independent and density-dependent selection on species abundance distributions. ESA Annual Meeting. Pittsburg, PA.
Matulich K. L., I. T. Carroll, and B. J. Cardinale. 2009. Priority effects: initial densities alter exponential growth rates of competing species. ESA Annual Meeting. Albuquerque, NM.
Carroll, I. T. and B. J. Cardinale. 2009. Diversity-stability relationships with competition for variable resources: Diversity and niche breadth are stabilizing. ESA Annual Meeting. Albuquerque, NM.
Carroll, I. T. and B. J. Cardinale. 2007. The balance of niche and neutral processes dictate the effects of biodiversity on ecosystem production. ESA Annual Meeting. San Jose, CA.
Carroll, I. T. and L. A. Meyerson. 2005. Number of New Introductions as an Indicator of Biological Invasion. ESA Annual Meeting. Montreal, QC.
Carroll, I. T. and J. B. Hughes. 2003. Metabolic cross-feeding in two-species bacterial communities. Gordon Research Conference in Microbial Population Biology. Andover, NH.
Updated on 2018-11-27